Street-sweeper.



0. S'GHUMANN;

' STREET SWEBPER.

- APYLIOA'TIOR FILED MABJZO 1908. 910,321.

3 SHEETS-SHEET 1.

Otto Schumann,

Patented Jan. 19,1909.

'0. S GI-IUMANN. STREET SWEEI BR. APPLICATION FILED MAR. 20, 190B.

Patented Jan.19, 1909.

3 SHEETS-SHEET 2.

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" 0. SCHUMANN.

STREET SWEEPER.

APPLICATION FILED MAR. 20, 1908.

Patented Jan. 19,1909.

3 SHEETS-SHEET 3.

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OTTO SOHUMANN, OF PHILADELPHIA, PENNSYLVANIA.

STREET-SWEEFEB.

Specification of Letters Patent.

Patented Jan. 19, 1909.

Application filed. March 20, 1908. Serial No. 422,199.

To all whom it may concern:

Be it known that I, OTTO SOHUMANN, a citizen of the United States, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Street-Sweepers, of which the following is a specification.

This invention relates to street sweepers and especially to that class of sweepers which are known as pick up machines, wherein the dirt is collected by the machine as it moves along, the object of the invention being to provide means for depositing the dirt collected by the machine into a tray or receptacle, which tray is so arranged as to be easily removable from the machine.

Another object of my invention is to provide a collecting cylinder with a plurality of buckets so formed that as the buckets pass upward, the dirt swept into the same will fall to the rear end of the bucket and pass into the collecting tray through a slot formed in the periphery of the cylinder just forward of the rear end of the bucket.

A further object is to provide means for freeing the cylinder from its driving mechanism so that it is independently rotatable whereby it may be brought into a position in which the receiving tray can be easily removed.

These objects are attained by the novel arrangement and construction of parts hereinafter fully described and shown in the accompanying drawings, in which:

Figure 1, is a side elevation of my im proved street sweeper. Fig. 2, is a longitudinal section of the same partly in elevation. Fig. 3, is a top plan view of the sweeper, the body being removed. Fig. 4, is a detail section showing the scrapers. Fig. 5, is a detail section through the water tank showing the manner of operating the valve. Fig. 6, is a perspective view of the hanging support for the receiving tray. Fig. 7, is a fragmentary vertical section through the collecting cylinder. Fig. 8, is a detail section through the axle showing the manner of locking the sprocket thereon, and, Fig. 9, is a fragmentary view of'the under side of the scoop or collecting plate.

In the drawings A, indicates a rectangular frame provided with depending legs in which are looselymounted axles B and The axle B, is

provided with a gear B, which meshes with a gear I), secured on a shaft D, carrying a brush D the ends of which are journaled in depending arms D secured to the frame A.

Loosely mounted on the axle C, over a recess C formed therein, is a sleeve E, carrying a sprocket E, the sleeve being locked to the axle by a pin F, carried by a spring F, which is secured to the axle by a bolt F on which is mounted a nut F and it will be seen that by throwing the pin F, out of the recess C formed in the axle, the sleeve will be allowed to rotate freely on the axle.

Mounted on journals A secured to the side bars of the frame A, is a shaft G, on which is secured a sprocket wheel G, which carries a chain G which passes over the sprocket E, so that when the axle C is r0- tated, the shaft G, will also be rotated.

Arranged on the shaft G, between the side bars of the frame is a cylinder formed of end disks H, secured thereto, provided with inwardly extending annular flanges H, adjacent to their edges on which are secured curved plates 1, provided with angled ends forming buckets I, the plates being spaced apart to leave openings between the buckets, through which the dirt carried upward by the buckets will pass or fall when the buckets have reached their uppermost position.

Each of the buckets is composed of a curved base plate I and a blade extending out from one edge thereof, said blade being inwardly or rearwardly bent backward over the base plate to some extent and thus extended outward at right angles to the angularly bent portion as at I. This gives each blade the form of a pocket, the lower edge of the pocket forming one side of the opening through which the dirt is to pass, the other edge of said opening 2' being formed by the edge of the curved base plate 1. Thus it will be seen that as the buckets are carried upward, the dirt will be gradually thrown towards the edge of the angled portion of the bucket until when, the bucket has reached its uppermost position, the dirt will fall downward vertically through the opening i.

Suspended from the shaft H between the end disks H of the cylinder and swinging freely on the shaft is the tray support J. This is semi-cylindrical in section and provided at its ends with upwardly extending plates 2 through which the shaft G passes.

One of the plates J is cut out as at J, the

cut out portion nearly coinciding with the section of the support J. This opening J is to permit the insertion and removal of a 5 receiving tray or receptacle K likewise semicylindrical in form but having closed ends.

One end of the receptacle is provided with a handle K as shown in Fig. 2. One of the disks is likewise provided with a semi-circular opening H which is so arranged as to register with the opening J when the cylinder is turned to the proper position. When it is desired therefore to remove the receiving tray K it is only necessary to turn the cylind'er around so as to bring the opening H into register with the opening J when the tray K may be drawn out by means of the handle or a new tray inserted.

Extending down from the side bars of the frame A, to each side of the disks H, are arms L, provided with sockets L, at their ends, in which are pivotally mounted the ends of a shaft M, which carries a receiving plate M, arranged in advance of the brush and adapted to receive the sweepings and convey the same into the pockets I, as the cylinder is revolved, and as the cylinder is rotated, the dirt will drop out of the pockets through the slots into the tray K, and when the tray becomes full, by releasing the sleeve E, the cylinder can be turned so as to allow the opening to register with the opening J, of t e supporting tray, so that the tray can be removed and emptied. The plate M, is 35 provided with an arm M adapted to engage a stop L for limiting the downward movement of the same.

Secured to the center of a cross bar of the frame A, in advanceof the axle C, is a socket N, in which is mounted a standard 0, carrying a frame 0, the depending arms of which carry converging scrapers O The standard 0' is vertically movable within the socket, and, the scrapers O bearing against the surface of the ground by their own weight. In order to lift the scrapers out of engagement with the ground, I provide the frame 0 with the outwardly extending arm P rigid therewith, the outer end of this arm is upwardly bent and is pivoted to a crank arm P secured on one end of an operating shaft P said shaft being mounted in bearings P secured to one of the side bars of the arm A. By rotating the shaft P, the scrapers may be 55 raised out of contact with the ground.

Arranged on the frame A, is a body Q, provided with compartments adjacent each end, one of the compartments forming a tank Q, in the bottom of which is secured a pipe Q 60 carrying a s rinkler Q at its lower'end, the ends of Whic are closed by plugs. Q so that it can be readily cleaned, the pipe Q being closed by a. cap valve, R, carried by lever B, operated by a link R connected to the 65 angle end of an operating rod R which ex,-

tends to the rear of the body so that it can be operated by the person using the machine.

Extending outwardly from the rear of the body are arms S, connected by a cross bar S, forming a handle by means of which the machine is pushed forwardly. The compartment at the rear of the body forms a receptacle T, in which tools or any other articles desired, can be placed, the body being closed by a sectional top U, the sections of which are connected together byhinges U, so that it can be readily removed, or either compartment opened, and it will be seen that this cover completely incloses the body so as to prevent the dust and dirt from escaping.

It will be seen that I have provided a street sweeper which is provided with a sprinkler and scraping device in advance of the brush so that the dirt loosened by the scraper will be sprinkled before it is brushed on to the receiving plate.

Having thus described my invention what I claim as new and desire to secure by Letters Patent isz- 1. In a street sweeper a rotary brush, a rotary collector having peripheral buckets,

o enings from said buckets into the interior of the collector, and a suspended receiving tray located within said collector and adapted to be removed therefrom.

2. In astreet sweeper a rotary brush, a transverse shaft, a rotatable cylinder carried thereon, buckets carried on the periphery of said cylinder, said cylinder having openings in its periphery in alinement with sai buck ets, a receiving tray support suspended from said transverse shaft inside of the cylinder, a receiving tray removably supported on said support, a rotary brush and a plate for conveying the sweepings from the brush to the cylinder buckets.

3. In a street sweeper, a rotary brush, a transverse shaft, and disks carried by said shaft, buckets between said end disks and forming the periphery of said cylinder, said buckets being spaced from each other so that the dirt carried therein may fall into the interior of the cylinder, a receiving tray support suspended from the transverse shaft in the interior of said cylinder and a tray supported thereon, one of said end disks having an opening through which the tray may be removed.

4; In a street sweeper, a rotary brush, a collecting plate, a transverse shaft, a cylinder rotatably mounted on said shaft, buckets on saidcylind'er ada ted to-carry the dirt u-pward as it is receive from the collecting plate and to deposit the dirt in the interior, a receiving tray support sus ended within the cylinder from the axial s aft thereof and a receiving tray adapted to rest on said support, one end of the cylinder being cutaway to allow the receiving tray to be withdrawn.

5. Ina street sweeper, a rotary brush, a

collecting plate arranged adjacent thereto, a cylinder arranged to receive the dirt from said collecting plate, an axle on which said cylinder is rotatably mounted, means for rotating the cylinder, and a receiving tray suspended within said cylinder and removable therefrom, said cylinder comprisin end pieces and a series of buckets supports within said end pieces and spaced from each other, each bucket having a curved base plate and a blade extended out from and rearwardly over said base plate and then extended out- -ward at an angle to said rearwardly extended portion.

6. In a street sweeper, a rotary brush, a collecting plate arranged adjacent to the brush, a cylinder adapted to take the dirt from said collecting brush, an axle on which the cylinder is mounted, means for rotating the cylinder and a tray arranged within said cylinder but removable therefrom, said cylinder comprising end pieces having inwardly projecting annular flanges and a series of buckets supported between said end pieces and on said annular flanges, each bucket having a curved base plate and a blade extended out from and rearwardly, over said base plate and then extended outward at an angle to said rearwardly extended portion.

7. A street sweeper comprising a frame provided with depending legs, axles loosely mounted in said legs and provided with wheels, a sprocket loosely mounted on one of said axles, a shaft mounted on said frame provided with a sprocket wheel, a chain carried by said sprockets, means for locking one of "said sprockets to the shaft or allowing it to turn loosely thereon, a

cylinder carried by said shaft provided with a plurality of buckets on its periphery adapted to receive the dirt swept up by the machine, a receiving tray support suspended upon the cylinder axle and within the cylinder, and a receiving tray supported thereon, one of said cylinders being provided with an opening adapted to aline with said receiving tray when the cylinder is turned to the proper position and to allow the tray to be withdrawn through said opening.

8. A street sweeper comprising a wheeled 7 frame, a brush revolubly mounted on said frame, a cylinder revolubly mounted in advance of the brush provided with a plurality of pockets, a tray support loosely mounted in said cylinder, a receiving tray arranged in said support and a pivoted plate mounted on the frame in advance of the brush for conveying the sweepings in said pockets, whereby they will be deposited into the tray as the cylinder is rotated.

9. A street sweeper comprising a frame provided with depending legs, axles loosely mounted in said legs, a brush operated by one of said axles, a shaft loosely mounted on the frame carrying a cylinder, said shaft being operated by the other axle, a plurality of spaced pockets formed on said cylinder, a removable tray arranged within the cylinder and a plate pivotally mounted in advance of said brush for conveying the dirt into said pockets, whereby said dirt will be deposited into the tray as the cylinder is rotated.

10. A street sweeper comprising a wheeled frame, a cylinder provided with a plurality of slots and pockets mounted on said frame, means for rotating said cylinder, a tray detachably arranged in said cylinder, a brush arranged to the rear of said cylinder, means for rotating said brush, and a plate arranged in advance of the brush for conveying the dirt into said pockets, whereby said dirt will pass through the slots of the cylinder in the tray, when the cylinder is rotated.

11. A street sweeper comprising a wheeled frame, a shaft mounted in said frame, means for operating said shaft, a cylinder secured on said shaft provided with a plurality of slots and receiving pockets, said cylinder being provided with an opening in one end, a tray support loosely mounted on said shaft within said cylinder, a tray arranged within said support, a revoluble brush arranged to the rear of said cylinder, and a pivoted plate arranged in advance of said brush and adapted to rest on the ground for conveying the sweepings from said brush into said pockets, whereby the sweepings will be deposited into the tray as the cylinder is rotated.

In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

OTTO SOHUMANN. Witnesses R. H. KRENKEL, RED ALBRIGHT. 

